Wombacher William D, Hornbuckle Keri C
Department of Civil and Environmental Engineering, The University of Iowa, Iowa City, Iowa 52240.
J Environ Eng (New York). 2009 Nov 1;135(11):1192. doi: 10.1061/(ASCE)EE.1943-7870.0000085.
Synthetic musk fragrances are common personal care product additives and wastewater contaminants that are routinely detected in the environment. This study examines the presence eight synthetic musk fragrances (AHTN, HHCB, ATII, ADBI, AHMI, musk xylene, and musk ketone) in source water and the removal of these compounds as they flow through a Midwestern conventional drinking water plant with lime softening. The compounds were measured in water, waste sludge, and air throughout the plant. HHCB and AHTN were detected in 100% of the samples and at the highest concentrations. A mass balance on HHCB and AHTN was performed under warm and cold weather conditions. The total removal efficiency for HHCB and AHTN, which averaged between 67% to 89%, is dominated by adsorption to water softener sludge and its consequent removal by sludge wasting and media filtration. Volatilization, chlorine disinfection, and the disposal of backwash water play a minor role in the removal of both compounds. As a result of inefficient overall removal, HHCB and AHTN are a constant presence at low levels in finished drinking water.
合成麝香香料是常见的个人护理产品添加剂和废水污染物，在环境中经常被检测到。本研究调查了原水中八种合成麝香香料（AHTN、HHCB、ATII、ADBI、AHMI、二甲苯麝香和酮麝香）的存在情况，以及这些化合物在流经一座采用石灰软化工艺的中西部传统饮用水处理厂时的去除情况。在整个处理厂的水、污泥和空气中对这些化合物进行了测量。在100%的样本中检测到了HHCB和AHTN，且浓度最高。在温暖和寒冷天气条件下对HHCB和AHTN进行了质量平衡分析。HHCB和AHTN的总去除效率平均在67%至89%之间，主要是通过吸附到水软化污泥上，随后通过污泥排放和介质过滤将其去除。挥发、氯消毒和反冲洗水的处理在这两种化合物的去除中起次要作用。由于总体去除效率低下，HHCB和AHTN在成品饮用水中持续以低水平存在。
